GAS EXCHANGE AND HYDROPONIC PRODUCTION OF ZUCCHINI UNDER SALT STRESS AND H2O2 APPLICATION
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/10560 |
Resumo: | Knowledge about the effect of chemical conditioners on the reduction of the deleterious effects caused by salinity on crops is of great importance for the expansion of the cultivation of vegetable crops such as zucchini in the semi-arid region of the Northeast. In this context, the objective of the present study was to evaluate the effect of the foliar application of hydrogen peroxide as a mitigator of salt stress on the gas exchange, production, and postharvest fruit quality of zucchini cultivated in a hydroponic system. The study was conducted in NFT-type (Nutrient Film Technique) hydroponic system in a greenhouse, in Pombal – PB, Brazil. The experimental design was completely randomized, in a 4 × 4 factorial scheme, corresponding to four levels of electrical conductivity of the nutrient solution - ECns (2.1 (control); 3.6; 5.1 and 6.6 dS m-1), and four concentrations of hydrogen peroxide - H2O2 (0; 20; 40 and 60 μM), with three replicates. Nutrient solution with electrical conductivity above 2.1 dS m-1 caused a reduction in gas exchange and the total number of fruits of zucchini. An increase in nutrient solution salinity levels increased the total soluble solids content of the fruits and the initial fluorescence of zucchini. Under conditions of nutrient solution salinity above 2.1 dS m-1, hydrogen peroxide could not mitigate the effects of salt stress. Application of 20 μM of H2O2 when the plants were grown in a nutrient solution of 2.1 dS m-1 promoted higher total fruit weight and basal diameter of the fruits. |
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GAS EXCHANGE AND HYDROPONIC PRODUCTION OF ZUCCHINI UNDER SALT STRESS AND H2O2 APPLICATIONTROCAS GASOSAS E PRODUÇÃO HIDROPÔNICA DE ABOBRINHA ITALIANA SOB ESTRESSE SALINO E APLICAÇÃO DE H2O2 Cucurbita pepo L.. Solução salina. Peróxido de hidrogênio.Cucurbita pepo L.. Saline solution. Hydrogen peroxide.Knowledge about the effect of chemical conditioners on the reduction of the deleterious effects caused by salinity on crops is of great importance for the expansion of the cultivation of vegetable crops such as zucchini in the semi-arid region of the Northeast. In this context, the objective of the present study was to evaluate the effect of the foliar application of hydrogen peroxide as a mitigator of salt stress on the gas exchange, production, and postharvest fruit quality of zucchini cultivated in a hydroponic system. The study was conducted in NFT-type (Nutrient Film Technique) hydroponic system in a greenhouse, in Pombal – PB, Brazil. The experimental design was completely randomized, in a 4 × 4 factorial scheme, corresponding to four levels of electrical conductivity of the nutrient solution - ECns (2.1 (control); 3.6; 5.1 and 6.6 dS m-1), and four concentrations of hydrogen peroxide - H2O2 (0; 20; 40 and 60 μM), with three replicates. Nutrient solution with electrical conductivity above 2.1 dS m-1 caused a reduction in gas exchange and the total number of fruits of zucchini. An increase in nutrient solution salinity levels increased the total soluble solids content of the fruits and the initial fluorescence of zucchini. Under conditions of nutrient solution salinity above 2.1 dS m-1, hydrogen peroxide could not mitigate the effects of salt stress. Application of 20 μM of H2O2 when the plants were grown in a nutrient solution of 2.1 dS m-1 promoted higher total fruit weight and basal diameter of the fruits.O conhecimento do efeito de condicionadores químicos na redução dos efeitos deletérios provocados pela salinidade nas culturas é de grande importância para a expansão do cultivos tais como abobrinha na região semiárida do Nordeste. Nesse contexto, no presente estudo objetivou-se avaliar o efeito da aplicação foliar de peróxido de hidrogênio como atenuador do estresse salino sob as trocas gasosas, a produção e a qualidade pós-colheita de frutos de abobrinha italiana cultivada em sistema hidropônico. O trabalho foi desenvolvido em sistema hidropônico tipo Técnica de Fluxo de Nutrientes em casa de vegetação, em Pombal – PB. O delineamento experimental foi o inteiramente casualizado, em esquema fatorial 4 × 4, sendo quatro níveis de condutividade elétrica da solução nutritiva - CEsn (2,1 (controle); 3,6; 5,1 e 6,6 dS m-1), e quatro concentrações de peróxido de hidrogênio – H2O2 (0; 20; 40 e 60 μM), com três repetições. A solução nutritiva com condutividade elétrica acima de 2,1 dS m-1 promoveu redução nas trocas gasosas e no número total de frutos de abobrinha italiana. A elevação dos níveis salinos da solução nutritiva aumentou o teor de sólidos solúveis totais dos frutos e a fluorescência inicial de abobrinha italiana. Em condições de salinidade da solução nutritiva acima de 2,1 dS m-1, o peróxido de hidrogênio não conseguiu atenuar os efeitos do estresse salino. A aplicação de 20 μM de H2O2 quando as plantas foram cultivadas em solução nutritiva de 2,1 dS m-1 promoveu maior peso total dos frutos e diâmetro basal dos frutos.Universidade Federal Rural do Semi-Árido2022-04-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/1056010.1590/1983-21252022v35n219rcREVISTA CAATINGA; Vol. 35 No. 2 (2022); 436-449Revista Caatinga; v. 35 n. 2 (2022); 436-4491983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/10560/10913Copyright (c) 2022 Revista Caatingainfo:eu-repo/semantics/openAccessDantas, Maíla VieiraLima , Geovani Soares de Gheyi , Hans Raj Pinheiro , Francisco Wesley Alves Silva , Petterson Costa Conceição Soares , Lauriane Almeida dos Anjos 2023-07-03T17:55:32Zoai:ojs.periodicos.ufersa.edu.br:article/10560Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:57.075473Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
GAS EXCHANGE AND HYDROPONIC PRODUCTION OF ZUCCHINI UNDER SALT STRESS AND H2O2 APPLICATION TROCAS GASOSAS E PRODUÇÃO HIDROPÔNICA DE ABOBRINHA ITALIANA SOB ESTRESSE SALINO E APLICAÇÃO DE H2O2 |
title |
GAS EXCHANGE AND HYDROPONIC PRODUCTION OF ZUCCHINI UNDER SALT STRESS AND H2O2 APPLICATION |
spellingShingle |
GAS EXCHANGE AND HYDROPONIC PRODUCTION OF ZUCCHINI UNDER SALT STRESS AND H2O2 APPLICATION Dantas, Maíla Vieira Cucurbita pepo L.. Solução salina. Peróxido de hidrogênio. Cucurbita pepo L.. Saline solution. Hydrogen peroxide. |
title_short |
GAS EXCHANGE AND HYDROPONIC PRODUCTION OF ZUCCHINI UNDER SALT STRESS AND H2O2 APPLICATION |
title_full |
GAS EXCHANGE AND HYDROPONIC PRODUCTION OF ZUCCHINI UNDER SALT STRESS AND H2O2 APPLICATION |
title_fullStr |
GAS EXCHANGE AND HYDROPONIC PRODUCTION OF ZUCCHINI UNDER SALT STRESS AND H2O2 APPLICATION |
title_full_unstemmed |
GAS EXCHANGE AND HYDROPONIC PRODUCTION OF ZUCCHINI UNDER SALT STRESS AND H2O2 APPLICATION |
title_sort |
GAS EXCHANGE AND HYDROPONIC PRODUCTION OF ZUCCHINI UNDER SALT STRESS AND H2O2 APPLICATION |
author |
Dantas, Maíla Vieira |
author_facet |
Dantas, Maíla Vieira Lima , Geovani Soares de Gheyi , Hans Raj Pinheiro , Francisco Wesley Alves Silva , Petterson Costa Conceição Soares , Lauriane Almeida dos Anjos |
author_role |
author |
author2 |
Lima , Geovani Soares de Gheyi , Hans Raj Pinheiro , Francisco Wesley Alves Silva , Petterson Costa Conceição Soares , Lauriane Almeida dos Anjos |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Dantas, Maíla Vieira Lima , Geovani Soares de Gheyi , Hans Raj Pinheiro , Francisco Wesley Alves Silva , Petterson Costa Conceição Soares , Lauriane Almeida dos Anjos |
dc.subject.por.fl_str_mv |
Cucurbita pepo L.. Solução salina. Peróxido de hidrogênio. Cucurbita pepo L.. Saline solution. Hydrogen peroxide. |
topic |
Cucurbita pepo L.. Solução salina. Peróxido de hidrogênio. Cucurbita pepo L.. Saline solution. Hydrogen peroxide. |
description |
Knowledge about the effect of chemical conditioners on the reduction of the deleterious effects caused by salinity on crops is of great importance for the expansion of the cultivation of vegetable crops such as zucchini in the semi-arid region of the Northeast. In this context, the objective of the present study was to evaluate the effect of the foliar application of hydrogen peroxide as a mitigator of salt stress on the gas exchange, production, and postharvest fruit quality of zucchini cultivated in a hydroponic system. The study was conducted in NFT-type (Nutrient Film Technique) hydroponic system in a greenhouse, in Pombal – PB, Brazil. The experimental design was completely randomized, in a 4 × 4 factorial scheme, corresponding to four levels of electrical conductivity of the nutrient solution - ECns (2.1 (control); 3.6; 5.1 and 6.6 dS m-1), and four concentrations of hydrogen peroxide - H2O2 (0; 20; 40 and 60 μM), with three replicates. Nutrient solution with electrical conductivity above 2.1 dS m-1 caused a reduction in gas exchange and the total number of fruits of zucchini. An increase in nutrient solution salinity levels increased the total soluble solids content of the fruits and the initial fluorescence of zucchini. Under conditions of nutrient solution salinity above 2.1 dS m-1, hydrogen peroxide could not mitigate the effects of salt stress. Application of 20 μM of H2O2 when the plants were grown in a nutrient solution of 2.1 dS m-1 promoted higher total fruit weight and basal diameter of the fruits. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-04-04 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/10560 10.1590/1983-21252022v35n219rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/10560 |
identifier_str_mv |
10.1590/1983-21252022v35n219rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/10560/10913 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2022 Revista Caatinga info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2022 Revista Caatinga |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 35 No. 2 (2022); 436-449 Revista Caatinga; v. 35 n. 2 (2022); 436-449 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
_version_ |
1797674029500334080 |